I also try and avoid synthetic fabrics especially for everyday use. What's your rationale behind it? Asking because I'm not exactly sure why I hold this view, and need some inspiration.
As far as concrete facts go, 1) we know that plastic fabrics (polyester, nylon, etc) generate airborne plastic particles which we then breathe in, 2) they exacerbate certain skin conditions, 3) they start to stink much faster than natural fibers, 4) they burn incredibly fast and fuse to your skin and 5) they’re funding the oil industry. Those factors alone are enough for me to essentially ban them from my body.
Beyond facts, there is also a certain ugly vibe to plastic clothes. They’re cheap and impersonal and disposable and typically generic. I have never really fallen in love with a polyester product. When it came time to throw away my polyester clothes, I wasn’t surprised to find that everything I really loved was wool/cotton/silk.